Hp photosmart 5520 printer software#

Two examples would be using a printer profile designed for one paper, with a different paper.

Equally if the settings on the device are changed in comparison to those settings when the profile was made, then the profile can no longer describe the behaviour of the device. If the wrong profile is used it will not. The profile should represent the behaviour of the device exactly. The profile for the output device is incorrect.If Photoshop is set to Preserve embedded profiles – it will use the colour profile within the document. This results in the wrong profiles being used and therefore the wrong conversions and the wrong colours. The colour settings are changed in Photoshop without understanding what they are for.It is the colour managed version which is correct – the none colour managed application is just sending the document RGB numbers to the output device regardless without any conversion regardless of what they represent in the document and the way they will be displayed on the output device. This is not actually fault, but it is a commonly raised issue. The colours look different in Photoshop, which is colour managed, to the colours in a different application which is not colour managed.So armed with those two profiles, the colour management system will convert the numbers in the document to the numbers that must be sent to the device in order that the correct colours are displayed. So with a monitor profile that is built to represent the specific monitor (or a printer profile built to represent the specific printer, ink and paper combination) then the colour management system can predict exactly what colours will be shown if it sends specific pixel values to that device. It should describe exactly what colours the device is capable of showing and, how the device will respond when sent certain values. This is the job of the monitor/printer & paper profile. What colour will be displayed on the printer/monitor if it is sent certain pixel values?.With the information from the document profile, the colour management system knows what colour is actually represented by the pixel values in the document. It also describes how the intermediate values move from 0 through to 255 – known as the tone response curve (or sometimes “gamma”).Įxamples of colour spaces are (Adobe RGB1998, sRGB IEC61966-2.1) This is the job of the document profile which describes the exact colour to be shown when Red=255 and what colour of white is meant when Red=255, Green = 255 and Blue =255. What colours do the numbers in the document represent? To ensure the output device is showing the correct colours then a colour management system needs to know two things.ġ. shop and look at the different coloured pictures – all from the same material. To see a demonstration of this, walk into your local T.V. The problem comes in that different devices can be sent those same numbers but will show different colours. In RGB mode, each pixel has a number representing Red, a number representing Green and a Number representing Blue. You should never substitute a monitor profile for a printer profile.ĭigital images are made up of numbers. Some folk use the equipment to produce their own printer profiles ( I do here) some use the profiles from the paper/printer manufacturer which are often quite accurate. That will be very different to the behaviour of a monitor. The printer profile has to describe the behaviour of your printer using a particular paper and ink set. A monitor profile should never be used as a printer profile. It is produced in a similar way but with different hardware (a spectrophotometer). The printer profile describes the printer. That is used to build a profile describing your actual screen.

Hp photosmart 5520 printer software#

So the profiling software sends a set of known colours to the screen and reads what actual colour is produced. To produce an accurate profile requires a hardware device which reads colours off the screen. Whilst you can use a generic profile for the monitor - it can only be close to describing your monitor. The monitor profile and printer profile are two separate things. Your action may have got your colours closer but is not the correct way to colour manage.

I've unmarked your answer as correct as it could mislead other people, and made sure D.Fosse's answer is highlighted as the correct answer.